rs35564486

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_017866.6(TMEM70):​c.684C>G​(p.Asn228Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00105 in 1,613,790 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0050 ( 4 hom., cov: 33)
Exomes 𝑓: 0.00064 ( 6 hom. )

Consequence

TMEM70
NM_017866.6 missense

Scores

2
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.436
Variant links:
Genes affected
TMEM70 (HGNC:26050): (transmembrane protein 70) This gene likely encodes a mitochondrial membrane protein. The encoded protein may play a role in biogenesis of mitochondrial ATP synthase. Mutations in this gene have been associated with neonatal mitochondrial encephalocardiomyopathy due to ATP synthase deficiency. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.00697127).
BP6
Variant 8-73981522-C-G is Benign according to our data. Variant chr8-73981522-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 137679.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr8-73981522-C-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00504 (767/152288) while in subpopulation AFR AF= 0.0165 (687/41552). AF 95% confidence interval is 0.0155. There are 4 homozygotes in gnomad4. There are 397 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TMEM70NM_017866.6 linkc.684C>G p.Asn228Lys missense_variant Exon 3 of 3 ENST00000312184.6 NP_060336.3 Q9BUB7-1
TMEM70NM_001040613.3 linkc.*374C>G 3_prime_UTR_variant Exon 3 of 3 NP_001035703.1 Q9BUB7-3
TMEM70NR_033334.2 linkn.864C>G non_coding_transcript_exon_variant Exon 4 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TMEM70ENST00000312184.6 linkc.684C>G p.Asn228Lys missense_variant Exon 3 of 3 1 NM_017866.6 ENSP00000312599.5 Q9BUB7-1

Frequencies

GnomAD3 genomes
AF:
0.00503
AC:
766
AN:
152170
Hom.:
4
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0166
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00321
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000250
Gnomad OTH
AF:
0.00334
GnomAD3 exomes
AF:
0.00169
AC:
425
AN:
251258
Hom.:
1
AF XY:
0.00142
AC XY:
193
AN XY:
135800
show subpopulations
Gnomad AFR exome
AF:
0.0172
Gnomad AMR exome
AF:
0.00298
Gnomad ASJ exome
AF:
0.000695
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.0000463
Gnomad NFE exome
AF:
0.000220
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.000637
AC:
931
AN:
1461502
Hom.:
6
Cov.:
32
AF XY:
0.000601
AC XY:
437
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.0148
Gnomad4 AMR exome
AF:
0.00291
Gnomad4 ASJ exome
AF:
0.000995
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000928
Gnomad4 FIN exome
AF:
0.0000563
Gnomad4 NFE exome
AF:
0.000147
Gnomad4 OTH exome
AF:
0.00152
GnomAD4 genome
AF:
0.00504
AC:
767
AN:
152288
Hom.:
4
Cov.:
33
AF XY:
0.00533
AC XY:
397
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0165
Gnomad4 AMR
AF:
0.00320
Gnomad4 ASJ
AF:
0.00115
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000250
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00106
Hom.:
1
Bravo
AF:
0.00539
ESP6500AA
AF:
0.0150
AC:
66
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00180
AC:
218
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000382
EpiControl
AF:
0.000296

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Mitochondrial complex V (ATP synthase) deficiency nuclear type 2 Benign:4
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 29, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 30, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Sep 15, 2016
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Apr 04, 2014
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.56
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
7.6
DANN
Benign
0.93
DEOGEN2
Benign
0.030
T
Eigen
Benign
-0.68
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.36
N
LIST_S2
Benign
0.79
T
MetaRNN
Benign
0.0070
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.0
M
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-3.2
D
REVEL
Benign
0.10
Sift
Benign
0.050
D
Sift4G
Benign
0.28
T
Polyphen
0.71
P
Vest4
0.38
MutPred
0.24
Gain of methylation at N228 (P = 0.0019);
MVP
0.31
MPC
0.49
ClinPred
0.045
T
GERP RS
0.39
Varity_R
0.098
gMVP
0.34

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs35564486; hg19: chr8-74893757; API